Ventilating system



June 14, 1932. J FLAHERTY 1,863,195

VENT ILATING SYSTEM Filed June 28. 1950 q g@/Zn @Za/w? Patented June 14, 1932 r Mme mares PATENT oFFIcE JOHN FLAHERTY, OF ST. LOUIS, MISSOURI VENTILATING SYSTEM Application filed June 28, 1930. Serial No. 464,438.

My invention has for its object to provide of the building to the roof. The stack pipe an improved ventilating system for small 20 is formed to increasingly graduate in residences and buildings. The particular cross-sectional area according to the moveobject of my invention is to impart to the air ment of the inlet received by the stack pipe 20 a moving within the system a swirling upward at the different horizontal levels of reception movement which will assist the air to rise of the inlet pipes. through the stack and to draw off gases and In order to connect a number of inlet pipes odors from within the building. to the stack 20 and to give a directive stim- The invention may be contained in ventiulus to the air carried by the inlet pipes as it lating systems that vary in their details and, enters the stack, venturi 25 is located in the 60 t illu t at a ti l application of the stack 20. The stack at this point changes invention, I have selected one form of conin cross-sectional area, that is, the cross-secstruction as an example of the different emtiona-l area of the stack pipe 20 below the bodiments of the invention and shall deventuri is to the crosssectional area 01" 15 scribe it hereinafter. The ventilating system the stack above the venturi as l is to 2. The 65 chosen for purposes of illustration is shown venturi 25 has a central chamber 26 having i th a a yi drawi an opening in the bottom which is adapt- Fig. lillustrates diagrammatically a venti ed to receive a section 21 of the stack pipe lating system installed in a small building. 20, and an opening 31 in its top adapted to 20 Fig. 2 illustrates a cross-section of the cap receive a section 22 of the stack pipe 20. The 7 which covers the outside entrance pipe of the section 21 of the stack pipe 20 extends well system. Fig. 3 is a side View of a ventilatinto the chamber 26 to a point just below the ing head which is locat d within the b ildopening 81. As the air moves from section ing. Fig. 4 illustrates an end view of the 21 through the venturi 25 and into section Ventilating head shown in Fig. 3. Fig. 5 22, there will be produced within the chamillustrates the Venturi joint for receiving in her 26 a slight vacuum which will tend to the main stack the air drawn from the ventidraw off the air within the chamber and lating heads. Fig. 6 illustrates the valve for s Connected pipes.

v allowing the escape of condensed moisture The venturi has a series of openings 27 39 in the system. which connect with the chamber 26. The

In the ventilating system shown for puropenings 27 are adapted to receive the inlet poses of illustration, an outside pipe 1, havplpes 28. The inlet pipes 28 carry the air ing openings 3 and 4, is connected to the and odors from several locations within the sewer line2 at its lower end. The upper end building to the venturi 25 and the stack is'covered by a cap 6 which is formed to pip 20. The ends of the pipe 28 are concause the air received into the pipe 1 to asnected with ventilating heads 40 which may sume a swirling motion. be positioned within the building as desired.

The cap 6 has a series of openings 7 which The ventilating heads 40 are cylindrical in I are arranged in staggered relation to each shape, one end 41 having cut-out sections 12, other. A pin wheel 10 is supported within and the other end being sealed. The head the cap by a standard 11 and rotates about 40 may be provided with a supporting brackthe standard 11 on a bearing member 12. It et 44 for locating the head on the wall of the will be seen that the air received within the building. A metal plate 43 is located over cap will be directed to assume a swirling mothe end 11 of the head and has openings 45 tion preparatory to its movement through which are located in alignment with the cutthe ventilating system. out sections 12. The openings 45 may be The pipe 1 is connected through its openformed by stamping and the cut portion 46 ing 3 to a Y-shaped pipe 15. The Y-shaped may be bent to form blades 47. The plate pipe 15 is connected with the stack pipe 20, 4:3 is positioned and held by the bolt 19 so which extends vertically through the interior that the blades 47 will cause the air which may pass through the openings and the cut-out section 42 of the head to assume a swirling movement. This swirling movement will increase the tendency of the air to move through the head and the pipes 28 to the stack pipe 20 and upwardly to the top of the stack.

The top of the stack 20 may be protected as against the elements by a cap having openings 51 arranged in a staggered relation to each other. It will be seen that, throughout the system, it is desired to impart to the moving air a swirling motion and, consequently, the parts are arranged in order to accentuate and direct the air into a circular motion in the same direction.

In order to allow for the drainage of water and moisture which may condense within the stack 20, a pipe 55 is connected to the Y- shaped pipe 15 and the opening 4 of the pipe 1. A spring valve 56 is located within the pipe 55 to prevent back draw of water through the pipe 55. The spring valve 56 is cone shaped and has a hollow ball 62 which tends to cover the opening 57 in the small end of the valve. The ball 62 is supported on a shaft 59. The shaft 59 is slidably supported in a bracket 58 which extends across the large end of the valve.

In order to hold the hollow ball 62' against the opening 57, maintaining the valve closed and. at the same time allow for escape. of water, a spring 60 is located about the shaft 59. One end of the spring 60 abuts against the bracket 58 and the other end against a nut or button 61 on the shaft 59 to spring press the ball 62 against the opening 57. The valve will allow the water to escape when the weight of the water is sufiicient to overcome the pressure of the spring and to move the ball outwardly. On the escape of the water, the spring 60 will return the ball to close the opening 57. The spring 60 may be adjusted by the nut 61 on the shaft 59.

I claim:

1. In a ventilating system for buildings, a stack located within the building and extending the height of the building, the stack formed to have a plurality of sections increasing in diameter, Venturi shells and tubes located intermediate the sections, a plurality of sets of ventilating heads, a plurality of sets of pipes interconnecting the heads to the shells, the said heads having a diameter larger than the diameter of the pipes, the heads having baffle plates inclined to thGELXQS of the heads to cause rotary move ment of the air in the heads, the connecting. pipes and the stack.

2. In a ventilating system having a stack, a Y-shaped pipe having a discharge outlet and an inlet connected to the lower end of the stack, the body of the Y-shaped pipe inclined to the horizontal and located in: a vertical plane, one of the legs of the pipe conmy name to this specification.

JOHN FLAI-IERTY. 

